210 lines
6 KiB
PHP
210 lines
6 KiB
PHP
<?php
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use Friendica\App;
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use Friendica\Core\System;
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use Friendica\Core\Config;
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use Friendica\Database\DBM;
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use Friendica\Model\User;
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require_once 'include/security.php';
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require_once 'include/datetime.php';
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// When the "Friendica" cookie is set, take the value to authenticate and renew the cookie.
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if (isset($_COOKIE["Friendica"])) {
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$data = json_decode($_COOKIE["Friendica"]);
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if (isset($data->uid)) {
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$user = dba::select('user',
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[],
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[
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'uid' => intval($data->uid),
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'blocked' => 0,
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'account_expired' => 0,
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'account_removed' => 0,
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'verified' => 1,
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],
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['limit' => 1]
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);
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if (DBM::is_result($user)) {
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if ($data->hash != cookie_hash($user)) {
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logger("Hash for user " . $data->uid . " doesn't fit.");
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nuke_session();
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goaway(System::baseUrl());
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}
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// Renew the cookie
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// Expires after 7 days by default,
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// can be set via system.auth_cookie_lifetime
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$authcookiedays = Config::get('system', 'auth_cookie_lifetime', 7);
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new_cookie($authcookiedays * 24 * 60 * 60, $user);
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// Do the authentification if not done by now
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if (!isset($_SESSION) || !isset($_SESSION['authenticated'])) {
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authenticate_success($user);
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if (Config::get('system', 'paranoia')) {
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$_SESSION['addr'] = $data->ip;
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}
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}
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}
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}
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}
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// login/logout
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if (isset($_SESSION) && x($_SESSION, 'authenticated') && (!x($_POST, 'auth-params') || ($_POST['auth-params'] !== 'login'))) {
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if ((x($_POST, 'auth-params') && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) {
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// process logout request
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call_hooks("logging_out");
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nuke_session();
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info(t('Logged out.') . EOL);
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goaway(System::baseUrl());
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}
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if (x($_SESSION, 'visitor_id') && !x($_SESSION, 'uid')) {
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$r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
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intval($_SESSION['visitor_id'])
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);
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if (DBM::is_result($r)) {
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$a->contact = $r[0];
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}
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}
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if (x($_SESSION, 'uid')) {
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// already logged in user returning
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$check = Config::get('system', 'paranoia');
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// extra paranoia - if the IP changed, log them out
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if ($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
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logger('Session address changed. Paranoid setting in effect, blocking session. ' .
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$_SESSION['addr'] . ' != ' . $_SERVER['REMOTE_ADDR']);
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nuke_session();
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goaway(System::baseUrl());
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}
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$user = dba::select('user',
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[],
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[
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'uid' => intval($_SESSION['uid']),
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'blocked' => 0,
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'account_expired' => 0,
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'account_removed' => 0,
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'verified' => 1,
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],
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['limit' => 1]
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);
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if (!DBM::is_result($user)) {
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nuke_session();
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goaway(System::baseUrl());
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}
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// Make sure to refresh the last login time for the user if the user
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// stays logged in for a long time, e.g. with "Remember Me"
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$login_refresh = false;
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if (!x($_SESSION['last_login_date'])) {
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$_SESSION['last_login_date'] = datetime_convert('UTC', 'UTC');
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}
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if (strcmp(datetime_convert('UTC', 'UTC', 'now - 12 hours'), $_SESSION['last_login_date']) > 0) {
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$_SESSION['last_login_date'] = datetime_convert('UTC', 'UTC');
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$login_refresh = true;
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}
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authenticate_success($user, false, false, $login_refresh);
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}
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} else {
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session_unset();
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if (
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!(x($_POST, 'password') && strlen($_POST['password']))
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&& (
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x($_POST, 'openid_url') && strlen($_POST['openid_url'])
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|| x($_POST, 'username') && strlen($_POST['username'])
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)
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) {
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$noid = Config::get('system', 'no_openid');
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$openid_url = trim(strlen($_POST['openid_url']) ? $_POST['openid_url'] : $_POST['username']);
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// validate_url alters the calling parameter
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$temp_string = $openid_url;
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// if it's an email address or doesn't resolve to a URL, fail.
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if ($noid || strpos($temp_string, '@') || !validate_url($temp_string)) {
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$a = get_app();
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notice(t('Login failed.') . EOL);
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goaway(System::baseUrl());
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// NOTREACHED
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}
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// Otherwise it's probably an openid.
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try {
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require_once('library/openid.php');
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$openid = new LightOpenID;
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$openid->identity = $openid_url;
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$_SESSION['openid'] = $openid_url;
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$_SESSION['remember'] = $_POST['remember'];
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$openid->returnUrl = System::baseUrl(true) . '/openid';
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goaway($openid->authUrl());
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} catch (Exception $e) {
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notice(t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.') . '<br /><br >' . t('The error message was:') . ' ' . $e->getMessage());
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}
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// NOTREACHED
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}
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if (x($_POST, 'auth-params') && $_POST['auth-params'] === 'login') {
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$record = null;
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$addon_auth = array(
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'username' => trim($_POST['username']),
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'password' => trim($_POST['password']),
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'authenticated' => 0,
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'user_record' => null
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);
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/**
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*
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* A plugin indicates successful login by setting 'authenticated' to non-zero value and returning a user record
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* Plugins should never set 'authenticated' except to indicate success - as hooks may be chained
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* and later plugins should not interfere with an earlier one that succeeded.
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*
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*/
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call_hooks('authenticate', $addon_auth);
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if ($addon_auth['authenticated'] && count($addon_auth['user_record'])) {
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$record = $addon_auth['user_record'];
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} else {
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$user_id = User::authenticate(trim($_POST['username']), trim($_POST['password']));
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if ($user_id) {
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$record = dba::select('user', [], ['uid' => $user_id], ['limit' => 1]);
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}
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}
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if (!$record || !count($record)) {
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logger('authenticate: failed login attempt: ' . notags(trim($_POST['username'])) . ' from IP ' . $_SERVER['REMOTE_ADDR']);
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notice(t('Login failed.') . EOL);
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goaway(System::baseUrl());
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}
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if (!$_POST['remember']) {
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new_cookie(0); // 0 means delete on browser exit
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}
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// if we haven't failed up this point, log them in.
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$_SESSION['remember'] = $_POST['remember'];
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$_SESSION['last_login_date'] = datetime_convert('UTC', 'UTC');
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authenticate_success($record, true, true);
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}
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}
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/**
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* @brief Kills the "Friendica" cookie and all session data
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*/
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function nuke_session()
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{
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new_cookie(-3600); // make sure cookie is deleted on browser close, as a security measure
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session_unset();
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session_destroy();
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}
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